Shelly's son weighed 3 kg at the time of birth. What would she expect his weight, when he is one year old ?

Question

Accepted Answer

Shelly's son weighed 3 kg at the time of birth. When considering the expected weight of a child at one year old, it is important to understand typical growth patterns in infants.

1. **Explanation for Option 3 (9-10 kg):** 
   - On average, infants tend to triple their birth weight by the time they reach one year of age. Given that Shelly's son weighed 3 kg at birth, tripling this weight would result in approximately 9 kg. This aligns perfectly with Option 3, which suggests a weight range of 9-10 kg. This is a widely accepted benchmark in pediatric growth charts and is considered a healthy weight range for a one-year-old child.

2. **Why Option 1 (4-5 kg) is incorrect:**
   - If Shelly's son weighed 3 kg at birth, a weight of 4-5 kg at one year old would indicate minimal growth, which is significantly below the expected growth rate for infants. This would not align with typical developmental milestones and could be a cause for concern regarding the child's health and nutrition.

3. **Why Option 2 (5-6 kg) is incorrect:**
   - Similar to Option 1, a weight of 5-6 kg at one year old would still be below the expected growth rate. This would suggest that the child has not even doubled his birth weight, which is not typical for healthy infant development.

4. **Why Option 4 (12-14 kg) is incorrect:**
   - While some children may weigh more than average, a weight of 12-14 kg at one year old would be considered above the typical range for most infants. This could indicate excessive weight gain, which might raise concerns about overnutrition or other health issues.

In conclusion, Option 3 (9-10 kg) is the correct answer because it reflects the standard expectation that a child's weight will triple from birth to one year, aligning with established pediatric growth patterns.